1. BIP-Schnorr Abstract: This document proposes a standard for 64-byte Schnorr signatures over the elliptic curve secp256k1.

  2. BIP-Taproot Abstract: This document proposes a new SegWit version 1 output type, with spending rules based on Taproot, Schnorr signatures, and Merkle branches.

  3. BIP-Tapscript Abstract: This document specifies the semantics of the initial scripting system under BIP341 [BIP-Taproot].

Some highlights:

Protip: If you have troubles memorizing BIP numbers (like me), achow101 observed that BIP-Taproot’s number, 341, are the reversed digits of BIP-143. The segwit version 0 transaction digest is defined in BIP-143 and version 1 digest is defined in BIP-341.